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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!news.ecn.uoknor.edu!solace!news.stealth.net!news.ibm.net.il!arclight.uoregon.edu!super.zippo.com!zdc!szdc!szdc-e!news From: "John S. Dyson" <dyson@freebsd.org> Newsgroups: comp.emulators.ms-windows.wine,comp.unix.bsd.freebsd.misc Subject: Re: Wine960928 crashed FreeBSD 2.1.5 Date: Fri, 01 Nov 1996 10:30:44 -0500 Organization: John S. Dyson's home machine Lines: 28 Message-ID: <327A17A4.167EB0E7@freebsd.org> References: <32762988.167EB0E7@watermarkgroup.com> <558ouv$2a1@prds-grn.demon.co.uk> <3279341C.7E62@watermarkgroup.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.01b1 (X11; I; FreeBSD 2.2-CURRENT i386) Xref: euryale.cc.adfa.oz.au comp.emulators.ms-windows.wine:5853 comp.unix.bsd.freebsd.misc:30381 Luoqi Chen wrote: > > After some research, I think I now understand what has gone wrong. > During a fork(), > user ldt table is NOT copied, instead the child will inherit the pointer > to the > same table. When one process tries to use a selector the other has > altered, a fault > is then signaled (segment not present fault?). I don't know how it ends > up at > a setrunqueue panic though. > > The fix would be duplicate the ldt table during fork(). In addition to > this fix, > I am working on related changes including, deallocation of ldt table > after exit and > set it to default when exec(). I will post the patch after I have done > testing. > (BTW, could anyone tell me how to contribute the patch to the > development team?) > You can send messages to bugs@freebsd.org, or hackers@freebsd.org for discussion. Feel free to subscribe to the FreeBSD mailing lists using majordomo@freebsd.org in the body, say "subscribe hackers" or somesuch. The mailing lists are where most of the FreeBSD action is. John